Skip to content
Celebrating over 50 years of Trusted Marine Service
Over 50 years of Trusted Marine Service

Fasteners & Mounting

Marine Hardware & Installation

Marine Fasteners, Mounting Hardware & Installation Supplies

Shop marine-grade screws, bolts, nuts, washers, brackets, backing plates, rivets, mounting pads, sealants, thread lockers, and anti-seize for secure hardware installations in saltwater environments.

Shop Fasteners & Mounting Stainless Screws Mounting Brackets
Install Check

Match metal grade, fastener size, thread type, backing support, bedding compound, and load direction before drilling into the boat.

Shop Backing Plates

Use marine-grade hardware and proper sealing practices. Confirm load ratings, material compatibility, corrosion risk, deck core protection, and manufacturer instructions before installation.

Quick ShopFitmentHardware TypesInstall NotesInspectionFAQDeck HardwareTools

Fitment

Choose the Right Metal, Size, and Support

Marine fasteners need to match the job. Consider stainless grade, length, diameter, head style, thread type, washer size, backing plate needs, and whether the hardware is loaded in pull, shear, or vibration.

316 Stainless 304 Stainless Threaded Rod

Corrosion

Saltwater Hardware Needs Material Discipline

316 stainless is commonly preferred for saltwater exposure, while 304 stainless may suit freshwater or less demanding areas. Isolate dissimilar metals where needed and use anti-seize on stainless threads to reduce galling.

If a fastener is structural or safety-critical, confirm the correct grade, torque, backing, and installation method.

SS

Stainless Fasteners

Screws, bolts, nuts, washers, threaded rod, lock nuts, and specialty head styles for marine repair and upgrades.

MNT

Mounting Hardware

Brackets, bases, pads, backing plates, antenna mounts, rod holder mounts, and accessory supports.

BED

Bedding & Bonding

Sealants, adhesives, thread lockers, anti-seize, and bedding compounds help hardware stay secure and watertight.

Install Notes

Seal Holes and Spread Loads

Fastener selection is only part of the job. Hardware installed through decks, cabins, rails, transoms, or cored panels needs the right pilot hole, sealant, backing, washer, and torque.

Pilot holesUse the correct drill size for the fastener, substrate, and thread engagement.
Bedding compoundSeal penetrations to keep water out of cores, cabins, lockers, and electronics areas.
Backing platesSpread loads for cleats, davits, ladders, rails, seats, and high-load deck hardware.
Thread careUse thread locker or anti-seize where appropriate, especially on stainless-to-stainless threads.

Inspection

Replace Corroded, Loose, or Mismatched Hardware

Check for rust streaks, loose brackets, elongated holes, cracked sealant, missing washers, galvanic corrosion, stripped threads, and water intrusion around mounted hardware.

Washers Nuts Adhesives

Projects

Good Hardware Makes Upgrades Last

Electronics, antennas, cleats, rod holders, seats, speakers, lights, ladders, hatches, and deck fittings all rely on correctly chosen mounting hardware.

For heavy or safety-related gear, do a dry fit, mark hole locations carefully, and confirm access to the backside before drilling.

FAQ

Marine Fastener Questions

Should I use 304 or 316 stainless fasteners on a boat?

316 stainless is usually preferred for saltwater and exposed marine use because it has stronger corrosion resistance. 304 stainless can be suitable for freshwater or less exposed applications.

Why do stainless fasteners seize or gall?

Stainless threads can gall when tightened under friction, especially stainless-on-stainless. Anti-seize, correct thread engagement, and careful tightening can help reduce the risk.

When do I need a backing plate?

Use backing plates when hardware carries significant load, such as cleats, rails, ladders, davits, seats, and deck fittings. Backing plates spread load and help prevent crushing or pull-through.

Should deck fasteners be sealed?

Yes. Holes through decks, cabins, and cored panels should be sealed with the correct marine bedding compound to help prevent leaks and core damage.

Ready for a Stronger Install?

Shop Marine Fasteners, Brackets, Backing Plates & Sealants

Search by fastener type, material, size, head style, mounting application, sealant need, bracket type, or installation project.

Shop Fasteners & Mounting Backing Plates Sealants

Filters

Quicksilver Screw 29227 (#8-32 x 0.50) – Mercury MerCruiser OEM

$5.09 - $5.09
$5.09
$5.09 - $5.09
$5.09
Only 1 left!

Quicksilver Screw 29227 (#8-32 x 0.50)This genuine OEM screw is a #8-32 thread, 0.50 in. long fastener used in Mercury and MerCruiser remote contro...

View full details
$5.09 - $5.09
$5.09
$5.09 - $5.09
$5.09

Quicksilver Washer 34567 – Mercury MerCruiser OEM

$2.26 - $2.26
$2.26
$2.26 - $2.26
$2.26
10 in stock

Quicksilver Washer 34567This genuine OEM washer is used in Bravo sterndrive exhaust and cooling system assemblies (serial 1G400000 and up). In thes...

View full details
$2.26 - $2.26
$2.26
$2.26 - $2.26
$2.26

Quicksilver Bearing Carrier Key 30281 – Mercury MerCruiser OEM

$4.49 - $4.49
$4.49
$4.49 - $4.49
$4.49
8 in stock

Quicksilver Bearing Carrier Key 30281This genuine OEM key locates and retains the bearing carrier in the gear housing of select Mercury and MerCrui...

View full details
$4.49 - $4.49
$4.49
$4.49 - $4.49
$4.49

Quicksilver Washer 26825 | .328 x .750 x .060 in. | Mercury MerCruiser OEM

$2.26 - $2.26
$2.26
$2.26 - $2.26
$2.26
Only 5 left!

Quicksilver OEM Washer — Part No. 26825 / 12-26825 Part Number: 26825 OEM Service Number: 12-26825 Brand: Quicksilver (Genuine Mercury Marine ...

View full details
$2.26 - $2.26
$2.26
$2.26 - $2.26
$2.26

Quicksilver 1/4-28 Jam Nut 8267139 | Mercury MerCruiser OEM Flame Arrestor Mounting

$1.13 - $1.13
$1.13
$1.13 - $1.13
$1.13
20 in stock

Quicksilver OEM 1/4-28 Jam Nut — Part No. 8267139 / 11-8267139 Part Number: 8267139 Service Format: 11-8267139 Supersedes: 28941 → 8267139 (cu...

View full details
$1.13 - $1.13
$1.13
$1.13 - $1.13
$1.13

Quicksilver Screw 8M0214921

$4.33 - $4.33
$4.33
$4.33 - $4.33
$4.33
Only 1 left!

OEM Screw for Mercury & MerCruiser AssembliesThis genuine Quicksilver screw is a precision fastener used across Mercury outboard and MerCruiser...

View full details
$4.33 - $4.33
$4.33
$4.33 - $4.33
$4.33
Rod Boss 90LUNDTMB 90 Degree Track Mount Backet for Lund Only, Set of 2

Rod Boss 90LUNDTMB 90° Lund Track Mount Bracket – Set of 2

$57.93 - $57.93
$57.93
$57.93 - $57.93
$57.93
Item locally warehoused

Rod Boss 90° Track Mount Bracket for Lund Boats – Set of 2 Keep your rods secure and your deck organized with the Rod Boss 90LUNDTMB — a 90-degree ...

View full details
$57.93 - $57.93
$57.93
$57.93 - $57.93
$57.93
Magma T10424 Bait Board Table with LeveLock® Mount

Magma T10424 Bait Board Table with LeveLock® All-Angle Rod Holder Mount – White

$353.89 - $353.89
$353.89
$353.89 - $353.89
$353.89
Item locally warehoused

A Professional-Grade Bait and Fillet Station — Ready to Mount to Any Cross-Pin Rod HolderThe Magma T10424 Bait Board Table is a complete, ready-to-...

View full details
$353.89 - $353.89
$353.89
$353.89 - $353.89
$353.89
Kuuma 58196 Adjacent Rod Holder Mount

Kuuma 58196 Adjacent Rod Holder Mount with Full-Adjust Ball & Socket

$213.69 - $213.69
$213.69
$213.69 - $213.69
$213.69
Item locally warehoused

Mount Your Sea Kettle Grill Right Next to Your Rod Holder — At Any AngleThe Kuuma 58196 Adjacent Rod Holder Mount is a premium grill mounting solut...

View full details
$213.69 - $213.69
$213.69
$213.69 - $213.69
$213.69
Kuuma 58180 Sea Kettle 60° Rod Holder Mt

Kuuma 58180 Sea Kettle 60° Rod Holder Mount for Cross-Pin Rod Holders

$120.89 - $120.89
$120.89
$120.89 - $120.89
$120.89
Item locally warehoused

Mount Your Sea Kettle Grill to Your Existing Rod Holder — At the Perfect AngleThe Kuuma 58180 Sea Kettle 60° Rod Holder Mount is designed to attach...

View full details
$120.89 - $120.89
$120.89
$120.89 - $120.89
$120.89
Magma A10-175 Pow'R Grip Fish Rod Holder Mount For Use With Any Magma Marine Kettle Grill

Magma A10-175 Pow'R Grip Rod Holder Mount for Marine Kettle Grills

$171.59 - $171.59
$171.59
$171.59 - $171.59
$171.59
Item locally warehoused

Mount Your Magma Kettle Grill to Any Standard Rod Holder — InstantlyThe Magma A10-175 Pow'R Grip Rod Holder Mount is the purpose-built solution for...

View full details
$171.59 - $171.59
$171.59
$171.59 - $171.59
$171.59
Magma T10-355" LeveLock" All-Angle Fish-Rod Holder (HD) Mount For All Rectangular Grills and Single Mount Filet Tables

Magma T10-355 LeveLock All-Angle Rod Holder HD Mount for Rectangular Grills & Filet Tables

$171.59 - $171.59
$171.59
$171.59 - $171.59
$171.59
Item locally warehoused

Instant Rod Holder Positioning — No Tools, No CompromiseThe Magma T10-355 LeveLock All-Angle Rod Holder Mount is a heavy-duty mounting solution tha...

View full details
$171.59 - $171.59
$171.59
$171.59 - $171.59
$171.59
Scotty XXX Drink Holder w/Bulkhaed/Gunnel/Rod Holder Mt., Black, 12/case

Scotty 311BK Drink Holder with Bulkhead, Gunnel & Rod Holder Mount – Black (12/case)

$23.49 - $23.49
$23.49
$23.49 - $23.49
$23.49
Item locally warehoused

Keep Your Drink Secure and Your Hands Free on the WaterThe Scotty 311BK Drink Holder is a versatile, removable cup holder designed for the marine e...

View full details
$23.49 - $23.49
$23.49
$23.49 - $23.49
$23.49
Rod Holder Mount Backing Plate

Scotty 441 Rod Holder Mount Backing Plate for Thin-Wall Watercraft

$8.49 - $8.49
$8.49
$8.49 - $8.49
$8.49
Item locally warehoused

A Solid Foundation for Your Rod Holder MountThe Scotty 441 Backing Plate is a simple but essential piece of hardware for anyone mounting a Scotty r...

View full details
$8.49 - $8.49
$8.49
$8.49 - $8.49
$8.49
Scotty Low Profile 8" Track

Scotty 440BK8 Low Profile 8" Mounting Track – Black

$17.49 - $17.49
$17.49
$17.49 - $17.49
$17.49
Item locally warehoused

More Mounting Positions, Same Low-Profile DesignThe Scotty 440BK8 Low Profile 8" Track gives you twice the mounting real estate of the 4" version w...

View full details
$17.49 - $17.49
$17.49
$17.49 - $17.49
$17.49
Scotty Low Profile 4" Track

Scotty 440BK4 Low Profile 4" Mounting Track – Black

$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99
Item locally warehoused

The Cleanest Way to Mount Scotty Accessories on Your BoatThe Scotty 440BK4 Low Profile 4" Track is a compact, top-load mounting track designed to w...

View full details
$12.99 - $12.99
$12.99
$12.99 - $12.99
$12.99
Scotty 429S Gear-Head Mount Extender

Scotty 429S Gear-Head Mount Extender with Rod Holder Post

$42.49 - $42.49
$42.49
$42.49 - $42.49
$42.49
Item locally warehoused

Bring Your Rod Holder Closer — Right Where You Need ItThe Scotty 429S Gear-Head Mount Extender is a complete kit that extends your rod holder outwa...

View full details
$42.49 - $42.49
$42.49
$42.49 - $42.49
$42.49
Rod Boss TH Tool Holder

Rod Boss TH Tool Holder for 3" Track Systems – SKU 767-TH

$94.18 - $94.18
$94.18
$94.18 - $94.18
$94.18
Item locally warehoused

Keep Your Deck Organized and Ready to FishThe Rod Boss TH Tool Holder is a purpose-built track accessory designed to mount tools, pliers, dehookers...

View full details
$94.18 - $94.18
$94.18
$94.18 - $94.18
$94.18
Seachoice Stainless Steel Tapping Screw Kit, 216 Piece
Sold out

Stainless Steel Self-Tapping Screw Kit, 216-Piece

$118.79 - $118.79
$118.79
$118.79 - $118.79
$118.79
Out of stock

216-Piece Stainless Steel Self-Tapping Screw KitKeep your boat properly fastened with this comprehensive 216-piece stainless steel self-tapping scr...

View full details
$118.79 - $118.79
$118.79
$118.79 - $118.79
$118.79
Sold out
Seachoice Stainless Steel Cap Screws - Hex Head

Seachoice Stainless Steel Cap Screws - Hex Head

$3.19 - $3.19
$3.19
$3.19 - $3.19
$3.19
Item locally warehoused

Stainless Steel.

$3.19 - $3.19
$3.19
$3.19 - $3.19
$3.19
3M Hook And Loop Fastening System, White, 1" x 4.9 yds

3M Hook And Loop Fastening System, White, 1" x 4.9 yds

$202.99 - $202.99
$202.99
$202.99 - $202.99
$202.99
Item locally warehoused

Coated with a high performance rubber adhesive. It features medium temperature performance and bonds well to paper and cardboard, paint, bare and p...

View full details
$202.99 - $202.99
$202.99
$202.99 - $202.99
$202.99
3M Hook And Loop Fastening Strips, 1" x 12", 12/pack, 6 packs/case

3M Hook And Loop Fastening Strips, 1" x 12", 12/pack, 6 packs/case

$212.19 - $212.19
$212.19
$212.19 - $212.19
$212.19
Item locally warehoused

A premium performance adhesive system with high temperature performance. Comprised of two non-woven nylon strips, one of hook material and one of l...

View full details
$212.19 - $212.19
$212.19
$212.19 - $212.19
$212.19
3M Hook And Loop Fastening System, Black, 1" x 4.9 yds

3M Hook And Loop Fastening System, Black, 1" x 4.9 yds

$211.19 - $211.19
$211.19
$211.19 - $211.19
$211.19
Item locally warehoused

Coated with a high performance rubber adhesive. It features medium temperature performance and bonds well to paper and cardboard, paint, bare and p...

View full details
$211.19 - $211.19
$211.19
$211.19 - $211.19
$211.19
Seachoice Stainless Steel Phillips Machine Screw - Flat Head, 1/4-20 x 1-1/2"

Seachoice Stainless Steel Phillips Machine Screw - Flat Head, 1/4-20 x 1-1/2"

$3.69 - $3.69
$3.69
$3.69 - $3.69
$3.69
Item locally warehoused

Stainless Steel.

$3.69 - $3.69
$3.69
$3.69 - $3.69
$3.69
SeaDog 327199 Removable Rail Mount Clamps | Fit 3/4" to 1-1/4" Tubing

SeaDog 327199 Removable Rail Mount Clamps | Fit 3/4" to 1-1/4" Tubing

$70.29 - $70.29
$70.29
$70.29 - $70.29
$70.29
Item locally warehoused

Removable Round Rail Mount Clamps include shims, thumb screws, and all mounting hardware. Great to retrofit your existing rails to mount a wide var...

View full details
$70.29 - $70.29
$70.29
$70.29 - $70.29
$70.29
Sea-Dog 3271901 Rail Mount Bracket - Round, For 7/8" - 1" Rail, Black, 2/pk

Sea-Dog 3271901 Rail Mount Bracket - Round, For 7/8" - 1" Rail, Black, 2/pk

$22.69 - $22.69
$22.69
$22.69 - $22.69
$22.69
Item locally warehoused

Injection Molded Nylon/Stainless Steel Screws.

$22.69 - $22.69
$22.69
$22.69 - $22.69
$22.69
Stainless Release Pin 1/4" x 2-1/2"

Stainless Release Pin 1/4" x 2-1/2"

$4.99 - $4.99
$4.99
$4.99 - $4.99
$4.99
Item locally warehoused

Standard duty release pins are ideal for basic holding and removal applications that don't require a positive locking ball feature. Constructed of ...

View full details
$4.99 - $4.99
$4.99
$4.99 - $4.99
$4.99
Seachoice Stainless Steel Clevis Pin

Seachoice Stainless Steel Clevis Pin

$4.79 - $4.79
$4.79
$4.79 - $4.79
$4.79
Item locally warehoused

Stainless Steel.

$4.79 - $4.79
$4.79
$4.79 - $4.79
$4.79
Seachoice Stainless Steel Cap Screws - Hex Head

Seachoice Stainless Steel Cap Screws - Hex Head

$2.89 - $2.89
$2.89
$2.89 - $2.89
$2.89
Item locally warehoused

Stainless Steel.

$2.89 - $2.89
$2.89
$2.89 - $2.89
$2.89
Sea-Dog 1935641 Split Ring 3/4" SS 3/Cd

Sea-Dog 1935641 Split Ring 3/4" SS 3/Cd

$8.99 - $8.99
$8.99
$8.99 - $8.99
$8.99
Item locally warehoused

Stainless 316 wire.

$8.99 - $8.99
$8.99
$8.99 - $8.99
$8.99
Stainless Release Pin 1/4" x 2-1/2", Pr.

Stainless Release Pin 1/4" x 2-1/2", Pr.

$12.39 - $12.39
$12.39
$12.39 - $12.39
$12.39
Item locally warehoused

Standard duty release pins are ideal for basic holding and removal applications that don't require a positive locking ball feature. Constructed of ...

View full details
$12.39 - $12.39
$12.39
$12.39 - $12.39
$12.39
Seachoice Stainless Steel Cap Screws - Hex Head

Seachoice Stainless Steel Cap Screws - Hex Head

$4.49 - $4.49
$4.49
$4.49 - $4.49
$4.49
Item locally warehoused

Stainless Steel.

$4.49 - $4.49
$4.49
$4.49 - $4.49
$4.49
Sea-Dog 1935621 Split Ring 15/32" SS 4/Cd

Sea-Dog 1935621 Split Ring 15/32" SS 4/Cd

$5.69 - $5.69
$5.69
$5.69 - $5.69
$5.69
Item locally warehoused

Stainless 316 wire.

$5.69 - $5.69
$5.69
$5.69 - $5.69
$5.69
SS Clevis Pin

SS Clevis Pin

$17.69 - $17.69
$17.69
$17.69 - $17.69
$17.69
Item locally warehoused

Formed AISI 316 stainless steel.Carded

$17.69 - $17.69
$17.69
$17.69 - $17.69
$17.69
Seachoice 59586 Stainless Steel Phillips Tapping Screw - Pan Head

Seachoice 59586 Stainless Steel Phillips Tapping Screw - Pan Head

$3.29 - $3.29
$3.29
$3.29 - $3.29
$3.29
Item locally warehoused

18-8 Stainless Steel.

$3.29 - $3.29
$3.29
$3.29 - $3.29
$3.29
Seachoice Stainless Steel Clevis Pin

Seachoice Stainless Steel Clevis Pin

$6.19 - $6.19
$6.19
$6.19 - $6.19
$6.19
Item locally warehoused

Stainless Steel.

$6.19 - $6.19
$6.19
$6.19 - $6.19
$6.19
Dual Lock Reclosable Fastener

Dual Lock Reclosable Fastener

$460.49 - $460.49
$460.49
$460.49 - $460.49
$460.49
Item locally warehoused

Consists of two types of continuous plastic strips with mushroom shaped stems. Designed to lock together to provide reclosable fastening for a wide...

View full details
$460.49 - $460.49
$460.49
$460.49 - $460.49
$460.49
Taylor Plastic Clothes Claws Boaters' Clothespins Fits 7/8 or 1" Tubular Railings (4 per Pack)

Taylor Plastic Clothes Claws Boaters' Clothespins Fits 7/8 or 1" Tubular Railings (4 per Pack)

$25.65 - $25.65
$25.65
$25.65 - $25.65
$25.65
Item locally warehoused

Made from high quality plastic molded with UV inhibitors.Features incredible holding power, unaffected by saltwater and it floats.

$25.65 - $25.65
$25.65
$25.65 - $25.65
$25.65
Stainless Release Pin 1/4" x 1", Pr.

Stainless Release Pin 1/4" x 1", Pr.

$8.90 - $8.90
$8.90
$8.90 - $8.90
$8.90
Item locally warehoused

Standard duty release pins are ideal for basic holding and removal applications that don't require a positive locking ball feature. Constructed of ...

View full details
$8.90 - $8.90
$8.90
$8.90 - $8.90
$8.90
Seachoice 59923 Machine Screws & Nuts for License Plate

Seachoice 59923 Machine Screws & Nuts for License Plate

$4.09 - $4.09
$4.09
$4.09 - $4.09
$4.09
Item locally warehoused

Machine screws and nuts for license plate.

$4.09 - $4.09
$4.09
$4.09 - $4.09
$4.09
Stainless Release Pin 1/4" x 1-1/2", Pr.

Stainless Release Pin 1/4" x 1-1/2", Pr.

$10.69 - $10.69
$10.69
$10.69 - $10.69
$10.69
Item locally warehoused

Standard duty release pins are ideal for basic holding and removal applications that don't require a positive locking ball feature. Constructed of ...

View full details
$10.69 - $10.69
$10.69
$10.69 - $10.69
$10.69
Seachoice 59907 Screw Caps, AlumTone, Fits #6 & #8

Seachoice 59907 Screw Caps, AlumTone, Fits #6 & #8

$6.69 - $6.69
$6.69
$6.69 - $6.69
$6.69
Item locally warehoused

Screw Cap

$6.69 - $6.69
$6.69
$6.69 - $6.69
$6.69
Seachoice Screw Caps, Black, Fits #10 & #12

Seachoice Screw Caps, Black, Fits #10 & #12

$5.79 - $5.79
$5.79
$5.79 - $5.79
$5.79
Item locally warehoused

Screw Cap

$5.79 - $5.79
$5.79
$5.79 - $5.79
$5.79
Seachoice Stainless Steel Cap Screws - Hex Head

Seachoice Stainless Steel Cap Screws - Hex Head

$5.59 - $5.59
$5.59
$5.59 - $5.59
$5.59
Item locally warehoused

Stainless Steel.

$5.59 - $5.59
$5.59
$5.59 - $5.59
$5.59
Sea-Dog 1935631 Split Ring 5/8" SS 4/Cd

Sea-Dog 1935631 Split Ring 5/8" SS 4/Cd

$7.89 - $7.89
$7.89
$7.89 - $7.89
$7.89
Item locally warehoused

Stainless 316 wire.

$7.89 - $7.89
$7.89
$7.89 - $7.89
$7.89
Seachoice Blind Rivet

Seachoice Blind Rivet

$5.69 - $5.69
$5.69
$5.69 - $5.69
$5.69
Item locally warehoused

18-8 SS

$5.69 - $5.69
$5.69
$5.69 - $5.69
$5.69
Seachoice 59896 Hitch Pin

Seachoice 59896 Hitch Pin

$7.19 - $7.19
$7.19
$7.19 - $7.19
$7.19
Item locally warehoused

Stainless Steel.

$7.19 - $7.19
$7.19
$7.19 - $7.19
$7.19
Stainless Release Pin 1/4" x 2-1/16", Pr.

Stainless Release Pin 1/4" x 2-1/16", Pr.

$13.19 - $13.19
$13.19
$13.19 - $13.19
$13.19
Item locally warehoused

Standard duty release pins are ideal for basic holding and removal applications that don't require a positive locking ball feature. Constructed of ...

View full details
$13.19 - $13.19
$13.19
$13.19 - $13.19
$13.19